[  455.039644] netdevsim netdevsim258 eni258np1: renamed from eth0
[  455.040553] netdevsim netdevsim539 eni539np1: renamed from eth1
[  455.126295] Could not find device with ifindex 2000 in netnsfd 11
[  455.126453] Could not find netns with fd: 2000
[  455.126513] Cannot link a netdevsim to itself
[  455.126567] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).